﻿<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>task1</title>
	<link rel="stylesheet" href="style.css">

</head>
<body>
	<main>
		<form action="" id="myform">
			<div class="kuai">
				<label for="b1">名称</label>
				<input type="text" id="b1" name="b1" >
				<button id="btn" type="submit" onclick="return btnClick()">验证</button>	
				<br>
				<span id="tips">
					必填，为4~16位字符
				</span>
			</div>
		</form>
	</main>
</body>
<script src="check.js"  charset="UTF-8"></script>
</html>